diff

Scenario: I have a patch file that applies cleanly to my working files, but I do not want all the changes from the patch. Usually, I do vim example.patch , remove unwanted changes and them apply patch -p0 -i example.patch but at times the patch does not apply cleanly, and I have to start over again. Is there a patch file editor that allows users to edit and delete part of the patch and still can apply cleanly ? If you open a diff file in emacs and put the editor in "diff" mode you can actually edit patches and it will update the hunk markers in a smart way. Works really well for me! If you are

How can I implement a diff function, such as Stack Overflow's question revision history? You have here a javascript example of the implementation of a diff algorithm. Based on: P. Heckel, A technique for isolating differences between files Comm. ACM, 21, (4), 264--268 (1978). The implementation, itself, has two functions, one of which is recommended for use: diffString( String oldFile, String newFile ) This method takes two strings and calculates the differences in each. The final result is the 'newFile' marked up with HTML (to signify both deletions from the oldFile and additions to the

Our win32 application assembles objects from the data in a number of tables in a MySQL relational database. Of such an object, multiple revisions are stored in the database. When storing multiple revisions of something, sooner or later you'll ask yourself the question if you can visualize the differences between two revisions :) So my question is: what would be a good way to "diff" two such database objects? Would you do the comparison at the database level? (Doesn't sound like a good idea: too low-level, and too sensitive to the schema). Would you compare the objects? Would you write a

I'm trying to get only new version of lines which have changed and not all the other info which git diff shows. For: git diff HEAD --no-ext-diff --unified=0 --exit-code -a --no-prefix It shows: diff --git file1 file2 index d9db605..a884b50 100644 --- file1 +++ file2 @@ -16 +16 @@ bla bla bla -old text +new text what I want to see is only: new text Is it possible? Only added lines does not make sense in all cases. If you replaced some block of text and you happend to include a single line which was there before, git has to match and guess. - Usually the output of git diff could be used as input

Before moving on to use SVN, I used to manage my project by simply keeping a /develop/ directory and editing and testing files there, then moving them to the /main/ directory. When I decided to move to SVN, I needed to be sure that the directories were indeed in sync. So, what is a good way to write a shell script [ bash ] to recursively compare files with the same name in two different directories? Note: The directory names used above are for sample only. I do not recommend storing your code in the top level :). The diff command has a -r option to recursively compare directories: diff -r

What is a good method for using diff to show a percentage difference between two files? Such as if a file has 100 lines and a copy has 15 lines that have been changed the diff-percent would be 15%. Something like this perhaps? Two files, A1 and A2. $ sdiff -B -b -s A1 A2 | wc would give you how many lines differed. wc gives total, just divide. The -b and -B are to ignore blanks and blank lines, and -s says to suppress the common lines. maibaita https://superuser.com/questions/347560/is-there-a-tool-to-measure-file-difference-percentage has a neat solution for this, wdiff -s file1.txt file2.txt

While refactoring source code, sometimes you need to move big blocks of text inside a file, or even to a new file. You create a branch refactored and commit away: $git checkout master $git branch refactored $git checkout refactored <move code around> $git commit -m "refactored code" However, people may commit on top of the old pre-refactor branch, changing the code that was moved: $git checkout master <change code that was moved elsewhere on branch refactored> $git commit -m "bugfix" On branch refactored , you then want to incorporate changes made in master : $git checkout refactored $git